I think Codility is a very usable product. It is very well designed at the interface level because it is simple for both the candidate and the interviewer, and it always works well. I have never had errors using Codility in an interview, which is quite critical for a selection process to be smooth and error-free. It helps me evaluate candidates with different technical profiles since the platform supports various languages. Additionally, the real-time support is excellent as we can see what the candidate is doing in real-time and then review the report and feedback, which helps us a lot in the selection process.

The IDE is similar to any desktop IDE, this help to code easy.

I think Codility is clean and looks really nice. It's a different take than other platforms, and the IDE is good. I also think it's just a beautiful platform. The initial setup is pretty easy and seamless.